We know that Genome collects $9.23 more than Manuel, and that Cindy collects 2 times as much as Genome.
We will denote by x the amount of money Manuel has. As Genome collects $9.23 more than Manuel, the amount of Genome is given by:
And as Cindy collects 2 times as much as Genome, we multiply the above amount by 2. This is,
Thus, Cindy will collect $18.46 + 2x, where x is the amount of money Manuel colects.